Thermostats For Water Heater

308 series thermostat is mainly used in water heaters, the products are bimetal as a temperature-sensitive components can replace Emerson (U.S. T.O.D.) 59T, 66T temperature control.

Product Drawings

Working Principle

The working principle of KSD308 single temperature control:

KSD308-A05:Auto reset one single-pole, single-throw, i.e., one switch controls a set of circuits which control a set of normally closed contacts which are disconnected as the temperature rises. Once the application temperature drops to a specific reset

temperature, the contacts will automatically reset to their normally closed state.

KSD308-A04: Auto reset one single double throw, basically the same as the single single throw, will control a group of circuits, but the group of circuits control two groups of contacts, normally closed contacts open when the auxiliary contacts closed, the circuit on; normally closed contacts reset when the auxiliary contacts closed, the circuit open.

When the normally closed contact is disconnected, the auxiliary contact is disconnected, the circuit is disconnected.

The working principle of KSD308 dual body temperature control:

KSD308-A02: manual reset + single-knife single-throw automatic reset, normally closed contacts will be automatically disconnected when the temperature rises to the set temperature; reset key is manually pressed, when the return to normal operation

When the reset button is pressed manually, the contact can be automatically reset to the closed state when it returns to the normal operating temperature. Once the contact is open, if the reset button is not manually pressed, the contact will not automatically reset to the closed position even when the temperature returns to normal operation unless the temperature drops to 32F (0°F).

The manual reset mechanism has been used by various certifying bodies. This manual reset configuration is referred to as "M1-Automatic Trip" by various certifying bodies.

KSD308-A01: Manual reset + double-pole, single-throw auto-reset is essentially the same as the single-pole, single-throw described above, but with the addition of an extra set of circuits, which also controls a separate set of contacts, both of which are either closed or open at the same time.

Product Features

Welded construction is used to ensure current integrity of the internal electronics.

For the 59T series thermostats, the mounting tabs extend into the customer's mounting bracket to secure the thermostat to the surface of the tank.

Series 66T thermostats are factory calibrated for temperatures ranging from 160°F to 220°F.

Series 59T thermostats have an adjustable temperature range above 110°F with a minimum calibrated temperature of 90°F (32°C) and a maximum calibrated temperature of 200°F (93°C).

All thermostats shipped from the factory are 100% tested for various product operations. Product certification standards, European (TUV), American Standard (UL, CUL).

Services

• Sample test: Because of the specialness of bimetal thermostats, we need to conduct matching installation test before an order is placed. Through such test, we can also make sure that the performance of our products, temperature and other parameters are qualified in line with customers’ requirements.
• Special requirements: We can design molds according to customers’ drawings. If customers do not have drawings, but have samples, they need to send the samples to our engineers. We can measure the size and design the drawing, and then design the mold based on the drawing.
• After-sales service: If the temperature of the product needs to be changed, please feel free to contact us and we will always be patient in serving you. Instead of engaging in one-off business, we are seeking long-term cooperation, from which we can achieve a win-win situation.
• Payment: Currently we support T/T payment, and demand an advance deposit which is 30% to 50% of the total amount. The rest shall be paid off before delivery. As for other payment methods, it can be determined according to the sum of the order and the actual situation.

Product Parameters